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2 products issued by NWS for: Muskegon MI
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Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
354 AM EDT MON JUL 6 2015

MIZ037>040-043>046-050>052-056>059-064>067-071>074-070800-
MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-
MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-
INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON-
354 AM EDT MON JUL 6 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE EXPECTED TO CROSS LAKE MICHIGAN LATE THIS
EVENING INTO THE WESTERN AREAS OF SOUTHWEST MICHIGAN. THE STORMS
ARE EXPECTED TO WEAKEN AS THE CROSS EAST OF US-131. THE MAIN
THREAT WITH THESE STORMS WILL BE LOCALLY HEAVY RAIN...GUSTY WINDS
AND FREQUENT CLOUD TO GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

SCATTERED THUNDERSTORMS ARE POSSIBLE TUESDAY INTO MID AFTERNOON.
FOR THE MOST PART THE PRIMARY THREAT AGAIN IS HEAVY RAINFALL WITH
THESE STORMS.

A WAVE ON THE FRONT MAY BRING THUNDERSTORMS WITH LOCALLY HEAVY
RAINFALL BACK TO THE AREA LATE WEDNESDAY NIGHT INTO THURSDAY.
ADDITIONAL WAVES ON THE FRONT WILL KEEP THE THREAT FOR SCATTERED
THUNDERSTORMS GOING INTO THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED THIS WEEK.

$$



Beach Hazards Statement

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
342 AM EDT MON JUL 6 2015

MIZ037-043-050-056-064-071-061545-
/O.EXT.KGRR.BH.S.0009.150706T1800Z-150707T2200Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
342 AM EDT MON JUL 6 2015

...BEACH HAZARDS STATEMENT NOW IN EFFECT FROM 2 PM EDT THIS
AFTERNOON THROUGH TUESDAY AFTERNOON...

* HIGH WAVE ACTION... STRONG CURRENTS AND DANGEROUS SWIMMING
  CONDITIONS EXPECTED.

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS EXPECTED.

* RIP CURRENTS EXPECTED.

* LOCATION...BEACHES FROM ST. JOSEPH TO MANISTEE.

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS LATE MONDAY
  INCLUDE...SOUTH BEACH IN SOUTH HAVEN... GRAND HAVEN STATE
  PARK... PERE MARQUETTE PARK IN MUSKEGON.

* OVERVIEW/POTENTIAL IMPACTS...SOUTH WINDS WILL INCREASE TO 15 TO
  25 KNOTS THIS AFTERNOON THEN SWING TO THE NORTH BEHIND THE COLD
  FRONT TUESDAY MORNING. SWIM HAZARDS WILL BECOME MORE LIKELY BY
  MID AFTERNOON UP NORTH AND EARLY EVENING DOWN SOUTH. CONDITIONS
  WILL CONTINUE THROUGH TUESDAY AS A COLD NORTH WIND SURGES IN
  BEHIND THE COLD FRONT TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY.

STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE CURRENTS AND
WAVE ACTION FLOW INTO THE STRUCTURE. STRUCTURAL CURRENTS CAN
SWEEP YOU OUT INTO DEEPER WATER ALONG THE PIER STRUCTURE.

A LONGSHORE CURRENT IS A LAKE CURRENT THAT MOVES PARALLEL TO
SHORE. LONGSHORE CURRENTS CAN BE STRONG ENOUGH TO PREVENT
SWIMMERS FROM BEING ABLE TO KEEP THEIR FEET ON THE BOTTOM...
MAKING IT DIFFICULT TO RETURN TO SHORE.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. RIP CURRENTS CAN SWEEP YOU INTO DEEPER WATER.

&&

$$

WDM

WEATHER.GOV/GRR



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